Automatic stopping device for vehicles.



E'. M. JONES. AUTOMATIC STOPPING DEVICE FOR VEHICLES.

APPLICATION FILED SEPT. I8, I9I3.

1,142,85,. Patented June 15-, 1915.

W I 5 SHEETS-SHEET I.

E. M. JONES.

AUTOMATIC STOPPING DEVICE FOR VEHICLES.

APPLICATION FILED SEPT- I8, I913- Patented Jlms 15, 1915.

NEH/17R M E. M. JONES..

AUTOMATIC STOFPlNG DEVICE FOR VEHICLES.

I APPLICATIION FILED SEPT. 18, 1913. I v l,1%2.,885. Patented June 15, 1915.

5 SHEETS-SHEET a.

72422.;555 I -JE/2/0R E. M. mas. a

AUTOMATIC STOPPING DEVICE FOR VEHICLES.

APPLICATION FILED SEPT. 18, 1913.

1 ,l fi 5a Patented June 15, 1915.

5 SHEETS-SHEET 4- 7/q/ff/7E55zi5 JUEH/UR @0401 did E. M. JONES.

AUTOMATIC STOPPING DEVICE FOR VEHICLES.

APPLICATION FILED SEPT. I8, IQIS. Patented June 15, 1915.

5 SHEETS-SHEET 5- nnrran s'rarn s rarnn r ent ies.

aniline M. JONES, or ATLANTA, enoaera, .assrenoh T JONES SIGNAL SYSTEM COMPANY, or ar anrapenoaem, A conroaarmn 9r enoiaem.

Ao'rotiairicsrqrrnve DEVICE rota vnmcnns.

To all vhom it may, concern:

Be it known that I, ELMER a citizen of the United States, residing at Atlanta, in the county of Fulton and State 'of Georgia, have invented a certain new and useful Improvement in Automatic Stopping Devices for Vehicles, of which the following is a full, clear, and exact description, referings.

ence being bad to the accompanying draw- This invention relates to a system trains, ete., running on a trackway. The

1 ing the movable ramp if it is in clearingsystem, broadly considered, may be in accordance with that shown, described and claimed in my prior Patent No. 1,129,201. In such system there are located along the trackway at intervals pairs of ramps, one

normally stationary and active, the other normally idle but'in'ovable when desired to active position; to codperate with these ramps the vehicle is provided with mechanism to engage the stationary ramp and:

move thereby to initiate the application of a brake. the vehicle having mechanism for preventing the brake application by engagposition and counteracting such initiation;

' if theinovable ramp is not in clearing posihicle.

ticn, the initiation of the brake automatically becomes effective in stopping the ve- The present invention s concerned \vithfthe vehicle mechanism designed to co operate with such a track device, this vehicle mechanism beingiii the nature of an improvement on that shown in said prior application,

though the claimsof said prior application dominate the present invention.

The invention is hereinaftenmore fully described and its essential characteristics are set out in the claims.

In the drawing, Figure l is a side elevation of my vehicle attachment and one of the track devices with which it coacts; Fig. 2

is a plan of the vehicle attachment; Fig. 3

is an end view thereof, partly sectional; Fig. 4 is a longitudinal, vertical. section of the vehicle attachment; Figs. 5 and 6 are similar views with the parts in difierent positions,- Fig. 4: showing it in normal position, Fig. i in resetting position, gthe resetting mechanism being supposed to be in engagement witli'the movable rampyFig. 6 showing the parts in backward 'resgtting position, the

5 5 backward resetter being supposed. to bein Specification of Letters Hitent. Application filed September 18, ieis; Serial m. 790,292.

M. Jones,

for ailtomatically controlling and stopping-cars,

engagement with the stationary rampfFig.

7 is asectional plan of the vehicle device on an enlarged scale; Fig. 8 islan end view of the device. 1

, Referring first to Figs. 1 and 3, .1 indi-' cates the rail of the track, 2 the ties thereof,

Patented June 15, 1915.

3 the stationary brake-applying device or ramp located parallel with the track and supported by projecting ends of ties, and t the movable ramp, which consists of two members hinged together, one having a guided free end 5 and the .other being rigidly-secured on an operating rock shaft 6. The turning ofthe rock shaft by suitable mechanism (not shown) may raise the ramp into clearing position, shown in Fig. 1. Nornially the ramp is down inhorizontal position, and thus idle.

Referring to Figs. 1, 3 and 8, 10 indicates the wheels of a vehicle truck, and 11 a longi tudinal member of such truck, which is shown as a pressed steel beam mounted on the journal boxes. It is to be understood that this member ills of different forms in bolted to the truck member 11. Guided be- I tween the outer side of this casting and overhanging straps 14, secured to it and extending downward parall l with it, is a'plate 15 .which is shown as connected with the journal boxes and as elastically carrying the vehicle mechanism. This plate is shown in,

Fig. 1 as notched at its'ends 16 to engage the respective journal boxes 17 of the truck and the straps 14 are secured to the. plate 15 by'bolt and, slot connections, as sliown The tripping and resetting mechanism in I the present invention is carried within a box or casing 20 having an open bottom and mounted on the plate 15. As shown, I have formed'on the rear face of the casting 20' pairs of cars 22 and 23 (shown best in- Fig. 8). These pairs of ears extend below pairs ofears 24 and 25 projecting from a plate26 bolted to the plate 15 by bolts 2,1 A stiff each ofbthe cars 25 and 22. This spring s;

centered by 'a' iod 29 secured to tit e ear 2 and projecting looaelv' through the other .compression spring 28 is placed betweeng ears and through the spring. This construe tion allows the casing and the parts it carries to play downwardly, if necessary, and

. puts cushions between it and the journals of the axles, but holds the casing rigidly against upward movement. The ends of the casing 20 are rounded over into top portions 30, and from these depend vertical side walls 32 and 33, and end walls 3% and" 35, all spaced from. the walls of the casing 20, making an internal rectangular frame. This internal frame has a bottom 36 which has an opening through it for the passage-of the tripping lever, to b e hereinafter described. Within the internal frame and carried by the rear wall 32 thereof is an air valve. The casing'of this valve shows in the drawings at 40; it is secured by bolts ll to the wall 32. The stem of the valve also shows in the drawings at 43 projecting downwardly from the valve casing. From the top of the easing extends an air pipe 45.

In an indirect air system, such as is usually used on trains, the pipe 45 may he simply a vent pipe from the train pipe, the vent pipe being normally closed bythe upwardly held valve stem 43, so that, when this stem is released and the valve dropped,

the air is vented, enabling a brake application. For a direct air system, which is usually employed, for example, on interurban electric cars, the dropping of the valve would couple the brake cylinder with the air reservoir. In either case, when the valve is held up, as shown in these drawings, the brake is off, so far as this mechanism is concernedfwhile, when the valve drops, the conditionshecome established for a brake application. I

lhe valve is normally held inits normal seated position by a bar 50. which intermediately engages the valve stem and, at one end, has a toe 51 hooking over an ear 52 on a latch arm 53, and, at the other. end, is pivoted at 54 to an arm 55. This arm 55 is' pivoted at 56, and belovs this, an arm 57 extends from the hub of the arm 55, the two arms constituting the tripping lever. The latch arm 53 is supported by being pivoted at its upper end at 59 to the resetting lever 60, which is pivoted at 61 and has a downwardly extending arm 62, which is engaged and pulled to the right by the spring. The arm 5 is supported in its 'down or normal position by having an upwardly inclined end 58 overhanging a flanged ledge 37 carried by a depending portion 38 of the corresponding end wall 34 of the inner casingi l lorinallyflhe parts are as shown in Fig. 4. Now, if the tripping lever 57 rides over one of thei stationary ramps 3, it will be raised and flirts move the arm 55 to the left. pulling the bar 50 oft of the hook 52. This bar then drops into, the position shown in Fig. 5, releasing the stem 43 of the air valve,

messes means act to immediately restore the to lift the valve stem and reseat the valve.

The resetting lever is operated by yoke member consisting of arms '55 and 74 connected by an intermediate segmental. portion 72 and pivoted one cross rod 71 can ried by the frame. Connecting the seg mental portion and the two arms is a 7 5. This structure makes an end gate non mally preventing anything 'vvhich may lodged along thetrackway from cngag depending mechanism or the casing path of which may coincide therewith. I bottom position of the yoke member 'Et dependent on a pin 76 projecting from the "end thereof into a slot 77 in the end v of the casing 20. The floor 7 5 of the re ting gate makes a comparatively close eonnectioii with a concentrically curved wall 78 of th? casing to prevent cinders or dirt working up into the casing at this point.

As soon as the tripping lever 5'2 cleared the stationary ramp, the spring Z.

restores this lever to its normal position, hutthe bar 50 Wlll now be down in the position shown in Fig. 5. If. the; resetting ramp is down in its normal and. danger position then the brake initiated by the dropping oi' the valve 43 continues and-becomes effective. if, however, the movable ramp is up, as shown in Fig. 1, then the sector-shaped 72 of the member 'werides upwardly acress this ramp and the lug 80, projecting upwardly from the arm 74:, engages the roll 81 on an arm 82 connected with the resettni 7 lever 60. This lug shoves upwardly on this roller, which swings the other end the resetting lever downwardly to bring latch arm 53 beneath the hooked-end 51 the bar 50. The latch arm is ceased to into this position by a spring 85 connected to it and to the resetting lever.

gate rides over the resetting ramp is shown in Fig. 5. It is 'seen that, after the leg 80 has depressed the latch bar the desired tanee, this lug slides out from under the K roller 81 and the curved edge 86 of the holds the parts in that position, irrespective of additional raising of the gate 72. lhis obviates the necessity of accuracy in amount of raising of this resetting gate to A the' movable ramp and holds the resetting lever and associated parts in the position shown in Fig. for a short period of time which tends to msure the relatching. When.

the resetting gateclears the resetting ramp, :2.

operation -for reasons which will he herein The position'of the parts as the resetting;

, after explained. The spring which acts on the arm 62 to return the resetting ramp is .shown as a compression spring 90 mounted in a suitable casing 91. which-casing is pivoted at 92-to the arm. 62.. The spring rests between the head end 9-1 of the casing and a head 95 on an internal rod 96 whlch is pivvotally mounted on a stationary cross rod 91' The head 91 may conveniently bea cap o screwing onto the casing.

The parts described are sufficient to pro vide an eifeotive tripping and resetting mechanism for ordinary conditions. To further insure effective operation at all 5 times, I add the retarding latch referred jto which prevents the resetting lever s\ \-'i-nging back to normal position instantly'when the gate member 7.0 clears .the clearing ramp.-'

Without this it might be possible, if the parts arranged as sh own were operatedvery rapidly, for the latch arm 50 to be depressed and raised before the spring 79 returns the bar 50 into engaging position. Inth'is case, the bar 50would not be engaged, and there would be undesirable application of the brake. I

The retarding latch is best shown in F ig. 4. It comprises a-dash pot cylinder 100, which has a plunger 101 connected by a link 102 with .a rock arm 103', this arm being rigid on a rock shaft 104, from which pro- .j'ec'ts a rock arm 105 carrying a springpressed dog'106 adapted to be engaged'by a.

"lug 107 on the latch arm 53. When the, latch" 85 arm is depressed,- the lug lOT slides past thedog 106 (forcing it inwardly against its spring), and the dog returning latches over -"the lug 107 so that the'returning operation of the latch ar'nr is delayed until the plunger 101 can be depressed by the action 'ofthe spring 90. This depression is. retarded by oil in the cylinder-which must pass out through a small opening 110 at the base thereof. \Vhen the lug'107 clears the dog 46 106 a spring (as,, for'example, the spring 109 in the dash pot cylinder) restores the dog. The dash put, the arm 103 andthe connecting mechanism is shown asmountedin a casing 112, which is adapted to contain oil indicated by 113. In the normal position of the parts this oil is both inside and outside of the dash pot cylinder. resetting ramplorces down the latch arm 53, it hooks beneath the dog 106 and the spring 90, pulling the latch arm upwardly, over;

comes the spring 109 of the latch. It necessarily does it comparatively slowly ona'c-w count of the oil, which must be forced out through the small opening 110. VVhenthis 9 oil is forced out, the arm 53 clears the dog.

106 andth'c resetting mechanism returns to reset position, as shown in Fig. 4. 'Fig. 5 shows the parts justbofore thelatch arm 53 rises and engages the dog 106. The casing 112 is preferably locked by a bolt 115 and a crating member is normally held in the'pothe latcharm Irnsttch downward more Now; when the' lug 116, and prevented from chattering by a spring" 117 secured to the top of the casing h and bearing against the underside of the main top 39.

When the vehicle is running backward it is desirable, not to-apply the brake Whenit 7. passes over the ramp. ,Accordingly, I sup? ply mechanism adapted to immediately reset the valve when itis operated by the lever 57 on reverse movement. membercof this backing reset'ter is a yoke arm 120' pivoted on theshaft 71 andex tending forwardly from thetripping device and having an end'portion 121 in segmental form, makingan end gate at the front'end.. 30

-"I-his gate has a bracing Web 122,ftheinner end of which makes a comparatively close" connection with a] concentrically curved v outer face of theicasing wall 38., This opsiti on shown in Fig by a pin 125 project-' ing from itto a slot. 126'in the end wall of the casing 20'. Extending upwardly from Q i the arm l20 described is a lug 130 which stands beneath f and normally engages a roller 131 on a rock arm 132.. This rock arm is'connected with a rock shaft 133,- which is journaled' in a boss 13 4 carried by'the, end wall 34." From this rock shaftexteixdsanarm 135 having a hooked end .a'dapted tori overhang the hook 13 of the arm 53'. 'hen the tripping lever 57 acts to with draw the, bar 50, the latter assumes the position shown in Fig. '6; while the latch arm 3 53 comes into the positibnshown in dotted lines .in that view. That is to say, as soon as the latch arm is freed from; the arm 50 it swings upwardlv slightly by reason of :the

tension on the spring-90; andthereupon a ment, the spring sdwitlidraws the latch arm. from the arm 135, th-ismo'vcmcnt being in sured by the angle-of the upper face of the hook 136.- Assoon'asvthe arm 53 clears this v hook the continued movement of thearm 135 causes its ronnded end to engage and positively shove thearm53 to the left so that the hook5'2 is passed beneaththe hook 51 of the bar 50. Then, as the gate 121 clears the stationary ramp and dropsback to normal position, the-spring 90 restores the resetting arm and lifts thebar 50 and the valye to normal position. Accordingly,

the valve is restored before the brake initia- 18o The actuating 5 tion becomes efiective, and thus, there is no brake application on rearward znovem'cnt of the vehicle.

, To prevent the necessitlj ofa'ccnrately sustaining the backward, r'setter with reference to the stationary ramp, '1 make the lug 130' act on the roller-131 similarly to the lug of the resetting arm heretofore described;

That is to say, the lug is curved conoentrically about the pivot, and, after the gate has raised the roller 131 the desired amount, the lug slides out from under the roller, and the curved edge thereof continues the parts in the same position, irrespective of additional raising; of the gate.

On the forward running of the vehicle, the gate 121 engages the stationary ramp and raises the lug 130, the same as on back- Ward movement, but, in this case, the latch arm 53 is in the position shown in Fig. 5 when the arm 135 comes down, so that the movement of that arm clears the hook 136, and thus the movement is entirely idle, A. spring 137 engaging the lever 132- and the "wall 34: returns the lever 3.35 to'normel position. F or the forward movement therefor the arm 120. acts simply as a gate, pre

I venting any oiistruction engaging the releas ing arm 5?. Q

To complete the protection from, obstruction'on the traclrvvaj which might accidentally he engaged by depending vehicle members, i provide two other gates alongside of the two gates heretofore-described, These additional gates are idle so far as operating anything is concerned and simply are protective. @ne of these gates is shown at YO. It has arms 151 and 153 pivoted on the shaft 71; it has a segmental end and a bottom Web 152 coacting with the curved wall 1540f the casing end 34, being thus similar to the gate 70. 157 indicates a corresponding protecting gate at the opposite end of the device located alongside oi the gate 121. Y

As heretofore stated, the tripping, resetting and operating mechanism generally is contained within the inner hex oi the casing. The box is normally closed at the top by the cover 39 and the only admissions to it are the openings through which the various levers project. The lever 135 extends through the end of this box, but the clearance necessary for its movement is smalhas it is pivoted adjacent the Wall 34. lv'ioreover, the space opposite the ends of the box is protected by the end gates. Where the trip lever passes through the bottom 0t the box I prefer to provide devices to prevent cinders or dirt passing up into the hex.

Such devices consist of a pair of plates 160 and 161 secured to the hottom 36 and extending into notches 163 in the hub of the lever. The bottom 36 is shown as arching on up at 165 over the through rod 1. Those masses snhstantiaiiy closed bottom is provided the inner box,

In operation, the various parts are, so above explained, thoroughly protected from dirt and dust and are protected from injury hy obstructions along the trackway; At the same time, the parts are readily accessible for inspection, cleaning, etc. The removal of the top plate 39 allows access-to the valve its casing, and the vaive holding and operet ing parts. When this cover is removed, the

removal of the pin 115 of the retarding' latch allows the casing 112 of that latch to be removed as a unit, and the removal of the cover portion of this casing from the body r thereot allovvs access to the interior-of this latch. This cover is preferably removable.

on a plane passing through axis oi the shaft 104;, so that, when the cover moved, all the mechanism of the latch is said her, and a resetting arm connect'ed with.

the latch arm, and adapted to he engaged by means along the trackvvay.

2. The comhination of a valve, a tripping lever, e oar pivoted to the lever, at one side of the vaive' stem, a valve stem hearing; asainst the harsintermediately, a latch lever adapted to engage the bar on the other side of the valve stem, and an automatic resetting arm connected with the latch arm, and

adapted to be operated by means along the trackvvay.

3. The combination of a tripping lever, her pivoted thereto, a pivoted resetting arm, a latch arm carried by the free end of the resetting arm and having a hook adapted to engage the bar, a valve, the stem of which bears against the bar intermediately, and means adapted to be engaged and operated by a track device for moving the resetting arm to move the valve.

4. The combination of a casing, an intcrmediatcly pivoted lever mounted therein. a bar pivoted at one end to the lever, a resetting lever pivoted within the casing, a latch. arm pivoted at the free end of the resetting lever and adapted to engage the other end of the her, and a valve adapted to be held seated by the oar, and an operating device adapted to engage a projection on the track Way and operate said resetting lever.

5. The combination, with a valve, of a bar for holding it seated, a pivoted lever, 21 hoolr on the end of the lever adapted to catch and engage the oar, a spring acting on the lever to hold-the valve seated, and means adapted to he engaged and operated by a. ioroiection it lit? l messes on the track-way for moving the lever in the opposite direction.- i 6. The combination of a valve, a bar with which the stem of the valve engages, a

movable support for one end of the bar, an

arm for Iengaging or, latching or releasing the other end of the bar, an arm to which the 4 latch arm is pivoted, and means for moving the valve seated,. an arm projecting from" said last mentioned arm, and means for engaging and moving said pro ect1ng arm.

S. The combination of a lever, a bar pivoted thereto, a valve bearing intermediately against the bar, a latch .arm adapted to engage the free end of the bar,-a resetting arm to which the latch arm is pivoted, tworock arms connected with the resetting arm, a spring connected to one of said rock arms,

and an operating member adapted to bear;

against the other rock arm.

t 9. The combination of a valve, a bar for holding it seated, a tripping lever connected with one endof the bar,a latch arm for holding the other end, a resetting lever sup-' porting the latch arm, and an operating lever out of alinement with the tripping lever and adapted to operate the resetting arm.

bar pivoted thereto, a latch'arm coactmg with the free end of the bar, a valve bearing intermediatel'v against theibar, a resetting lever to which the latch arm is pivoted, a

spring tending to swing the latch arm in the,

direction of the bar, and a spring tending to swing the resetting lever in a direction to seat the bar.

11. The combination of a valve, abar.

lever to which the bar is connected, a resetting lever, latching mechanism adapted to connect the resetting lever with the bar, and means for retarding the resetting movement.

12. The combination of a pivoted tripping lever, a bar pivoted thereto, a resetting arm, a latch armcarried thereby and adapted'to engage the bar, a valve adapted to be held seated by said bar, and a time'latch adapted to retard the movement of the latch arm in resetting direction.

13. The combination, with a valve, of a bar for holding itseated, a tripping lever connected with said bar, a resetting arm connected with the latch arm, a retarding latch consisting of a dash pot and lever mechanism, which latter is adapted to coact with the resetting mechanism.

latch armto swing into The combinationot a valve, mechanism for seating the same including a resetting arm, a latch arm connected with the free end of the resetting arm, a bar normally held by the latch arm, a dash pot, a movable'arm-connected therewith and retarded by it, means-for withdrawing the bar from the latch arm,.1and means for thereafter mov for releasing it when desired and means for resetting it when released, of a retarding latch adapted to; delay the resetting, said latch comprising a casing containing a dash 'ing the resetting arm to engage the. bar and pot cylinder, a plunger/1n the cylindenleverf mechanism connected with the plunger and I extendingoutside of the casing, said casing with thedash-pot parts described being removable as' a unit.

16. 'Thecombination of a valve, a bar for holding its'eated, a resetting arm, a latch arm carried'thereby and adapted to engage the bar, means for withdrawing the barfrom the latch arm, a normally idle device for forcing the arm into position to engage the bar. after being released, and means whereby the release of the bar causes the position for engagement by said device.

1 7. The combination of a valve, a bar for holdingit seated, a tripping lever to which the bar is pivoted, a resetting lever, a latch 1 arm carried thereby and adapted to hook 10. The combination of a tripping lever, a

acrossthe bar, a second hook carried bythe ice latch arm, a lever, and meansfor moving the i second hook into the path of the last mentioned' lever. r

18. The combination with ramps along a trackway, of mechanism on a vehicle comprising a valve, a tripping lever,-a bar pivoted to the lever, a latch hook for the opposite end of the bar, the valve engaging the bar intermediately, a resettingarm connected with the latch hook, a movablemember alined'with the resetting arm-and adapt- I;

ed to engage the'same ramp 'it engages, and

mechanism operatedby 'saidmember for engaging the 'latch arm and resetting the device. r

19. The'com-bination of a valve, atripping I lever, a resetting lever, a latch arm connectedwith the resetting lever, a bar connected vith the tripping lever and adapted to be engaged by the latch arm or releasedtheres from when the tripping lever is moved,'an arm out of alinement with the tripping lever and adapted .to operate the resetting lever to cause the latch arm to reengage the bar, an arm in alinement with the tripping lever, and mechanism operated by the last mentioned arm" to engage the released latch arm and restore it. p Y 20. In a device of the character described,

ntaaese ing gates operating in the space between the internal and external casing.' I 21. in a device of the character described, the combination of an external casing, an 1nternal casing spaced from the external casthe-plate, a casing. a pair of ears projecting a ing, a valve tripping mechanism and a resetting mechanism contained within the internal casing, said tripping and resetting .mechanism projecting outwardly through openings in the internal casing, and two pairs of projecting gates at the front and rear ends of the main casing respectively and operating within said casing and outside of the internal casing.

22; in a device of the character described, the combination of an external casing, an internal casing spaced frornthe external casing. a valve tripping mechanism and a resetting mechanism contained within the internal casing, said tripping and resetting mechanism projecting' outwardly through openings in the internal casing. and projecting gates at opposite ends of the device operating in the-spaces between the casings,

said gates having; arms mounted on a cross rod carried bv the external casing and projecting beneath the internal casing.

93. The combination, with valve opening and resetting mechanism, of a casing containing the same, a plate connected\with a vehicle truck, andna spring connection between the casing a d plate allowing the casing to descend elastically but positively limiting its upward movement.

24. The combinatlion. with a vehicle truck, of aplate connected with the iournal boxes, and slidably connected with the truck, ofa valve. tripping and resetting mechanism therefor, a casing carrying such parts, and an elastic connection between the same and. said plate.

25. The combination, with a vehicle truck,

of a plate connected with the journal boxes thereof, slidable guides between said plate and the truck, a pair of ears projecting from from it, a rod slidably connecting the ears mentioned. a spring surrounding said rod, an air valve, and tripping and resetting mechanism carried by the casing.

26. The combination, with, an air valve on means, a device operable from the trackway independently of the releasing means for resetting the holding means, and a device acting; on said last namedmeans providing a time interval after the releasing and hetero all of the parts resume their normal position.

27. The combination, with an air valve on a vehicle, of means for holding the valve closed, meansfor latching the holding means,

means for releasing the latch allowing the means for closing the valve, and a retarding device acting on the closing means to pro- -vide a time interval insuring the operation of the latch.

29. The combination, with means on a moving vehicle for applying a brake, ot means on the vehiclefor preventing such application becoming effective, and means for retarding for a time interval the action of the preventing means.

.30. The combination, with an air valve on a vehicle, of means for opening the valve, means for closing the valve, a movable device on the trackway adapted to operate the closing means after the valve has opened or leave-the valve open according to the .posi tion of said device, and a retarding device acting on the closing means to provide a time interval before the'valve is closed.

31. The combinati n, with a valve, of a means for holding it ated, a tripping lever connected with said means and operable from the trackway, a resetting lever, mechanism operated thereby for reseating the valve, means connected with the reseating -mechanism for retarding the rescaling action, and means on the trackway for operating the resetting lever independently of the tripping lever.

the combination of a valve, means for hold ing it normally seated, means for releasing it, and means for resetting it when released comprising a resetting lever, means along the trackwa v for operating said lever, a cam on said lever fol-operating the resetting means, said cam being so shaped that the first part of the movement moves the resetting means and the remaining portion provides a rest, preventing instantaneous re turn of the resetting mechanism.

33. In a device of the character described, the combination with a valve, of a bar for holding it seated, a tripping lever connected with said bar,- resetting mechanism includmg a means for enga guns, the bar, means for operating lever for the resetting means, a

drawing the same toward the valve, 21 second preventing until the lever returns substantially to its said bar,

, other end,

is moved upwardly means into engagement with said bar on the first part of'zthe movement of the'lever while the return "movement thereof normal position. .l I;

34. In a device of aie: character described, the combination of a valve, a bar for holding it seated, a latch for engaging one end of a tripping lever attached to the means for moving the latch to engage the bar when the valve is unseated, and a resetting mechanism-including a .cam

thereon for actuating said means, said cam being so shaped that the first part of its movement brings the latch into position to cngage'the bar and thereafter prevents the return movement of the latch until the lever returns nearly to normal position.

35. The combination with a valve, of means for holding it seated and'a latch coopera tingwi'th said means, means for releas- 1ng the valve, means for moving the latch to reseat the,valve, an operatlng lever therefor having'a. cam, a roller on the latch moving means coiiperatlng with said cam, said cam having an arcuate-surface struck about the pivot of the lever as a center whereby when to move the resetting the lever'is moved toward said roller, part of the movement moves said latch and the remaining portion acts as a rest prevhtof the latch untilsaid lever mg the return returns nearly to Its normal position,

""36. In a device ofjhe-charactendescribed, the combination of a valve,

the valve seated, a latch engaging one end of the bar and a latch attached to the'other end drawing the lever out of engagement with the latch, a lever for moving said latch downwardly to reengage the bar, and means tending to return the lever, an operating lever having a cam mounted thereon with an operating surface adapted to cooperate with signature in the presence of two witnesses.

In testimony whereof, I hereunto ailix my 50 I o i Witnesses;

ALBERT. H. BATES,

J nsrm W. MACKLIN.

a bar holding" the cam actingto move the ELMER .M. JONES. I 

